Thunder Power did deliver a great performing 1300mAh battery with a nice feature and unfortunately one weak point. The performance (in part) is the best I did ever see on the Lipobench so far, out of a insane lightweight battery. This battery is really a power pack.
First the nice feature I would like to see more. This battery has a very short balance lead, and a small flap made out of the same heat shrink the battery is protected with. So, while flying, the balance lead is always out of the way and can not be damaged. Nice!
The performance on the dynamic race test is starting really great, and up until the very end it is even slightly outperforming the Gaoneng GNB 120C 1300mAh and would have been place 1 of the 1300mAh. But starting at 85 seconds of the 90s stress phase the Thunder Power did drop in voltage, there just was not enough power (mAh) left in the battery.
The weight is the second, very strong point. With only 156g, this is ridiculously light weighted for the given power.
So if you are looking for a really strong performing battery, with a nice balance lead feature, you will find this in the Thunder Powers latest 1300mAh. It did hit the ranking at a verry strong 2nd place, but is outperforming all other 1300mAh batteries in the first 85s. And the weight is pushing this even further.
If you keep in mind that you have about 5s less flight time under heavy load, you get premium power ... at a premium price reflecting the performance.